123233022020 has 24 divisors (see below), whose sum is σ = 258795961368. Its totient is φ = 49291948800.

The previous prime is 123233022007. The next prime is 123233022043. The reversal of 123233022020 is 20220332321.

It can be written as a sum of positive squares in 4 ways, for example, as 52756577344 + 70476444676 = 229688^2 + 265474^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123233021983 and 123233022001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405880 + ... + 1490960.

It is an arithmetic number, because the mean of its divisors is an integer number (10783165057).

Almost surely, 2^123233022020 is an apocalyptic number.

123233022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123233022020 is an abundant number, since it is smaller than the sum of its proper divisors (135562939348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123233022020 is a wasteful number, since it uses less digits than its factorization.

123233022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157511 (or 157509 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 123233022020 its reverse (20220332321), we get a palindrome (143453354341).

The spelling of 123233022020 in words is "one hundred twenty-three billion, two hundred thirty-three million, twenty-two thousand, twenty".